General internal combustion engine questions.
2
votes
1answer
93 views
How much vacuum should be present in a 2 stroke intake manifold?
I have a 2 stroke Mercury 2.5 hp that has recently been dropped in the water. The motor used to run fine but now it won't start. I have dried the motor out and cleaned the carby, it's got plenty of ...
2
votes
1answer
45 views
Four-body carbs regulation.
I would like to adjust four-body carbs by myself, in order to avoid spent money every time. What are the basic rules, tools and secrets of many body carbs regulation?
2
votes
2answers
458 views
Aftermarket start-stop system
I am looking for an aftermarket device that turn off the engine when the car is in rest and turn on the engine when the throttle is pushed. Which are the producer? Where i can find it on internet?
1
vote
2answers
74 views
Possible to diagnose broken transmission without starting engine?
While I know a little about cars, the bulk of my knowledge came from when I was a kid bolting on stuff to my Honda and racing it illegally. (So, not much.)
My '96 Civic DX (5-speed) recently passed ...
0
votes
0answers
214 views
Volvo S40 engine on passenger side is making a noise as I accelerate and drive
Just today my S40 began making a knocking noise that was horrible. I checked the oil and it was low so I put in oil, checked all other fluids and they were at normal levels.
The sound went away so I ...
11
votes
4answers
4k views
Driving in second gear at 65+ mph
I accidentally drove my 2000 Grand Marquis on second gear on the highway. I was going 65 for like 5 minutes and tried to get it to 70mph but the car was shaking, when I realized I put it into regular ...
8
votes
4answers
765 views
2000 Jetta runs rough, shutters on cold start only on wet days.
This is an issue I've had off and on for, embarrassingly, at least a year:
On misty or wet mornings, everything starts out fine but, a few minutes into the drive (like clockwork. I even know the ...
8
votes
6answers
2k views
Do I need to torque my spark plugs?
I have never torqued them before on several vehicles that I do tune ups on. I just apply a bit of anti-seize lube and get them "snug" and everything seems to work fine. Should I be using a torque ...
4
votes
3answers
403 views
Forced induction and engine braking
So does forced induction negate the effect of engine braking on compression motors?
For example, going down an incline, drop into 3rd (automatic) to get some engine braking going. With my new Chevy ...
2
votes
1answer
35 views
Jet ski maintainance
I have two old jet skis, one of which isn't working too well anymore. I'd like to learn how to fix it. I'd probably not be able to sell it for very much anyways. Are there any good books or resources ...
2
votes
1answer
267 views
Engine has become noisy
I have a 1993 Mercedes 308d. It always used to be fairly quiet, but recently the engine has started to sound quite noisy. Its OK when started then after it gets warm you notice when you come to a ...
1
vote
4answers
203 views
How to prevent a car from boosting?
Considering a turbo car. The specific model is a Dodge Caliber SRT 2008, but I'd prefer a more generic answer.
How can one prevent the car from boosting while still having a car that can be driven ...
6
votes
4answers
3k views
What colour should power steering fluid be?
Recently started shopping for first car, so want to know as much as possible when going into a sale.
Car I looked at recently has a brown dirty colour in the power steering reservoir, but the stuff ...
1
vote
1answer
141 views
Misfire in cylinder 4
About 8 months ago my engine light came on, and after pulling the code it was a misfire in cylinder 4. My vehicle is a 2004 Mazda MPV, and only has 60K miles on it. Everyone I talked to was skeptical ...
4
votes
1answer
101 views
Fast idle when engine is hot
I have a 2001 Buick Century. Lately, after driving around long enough for the engine to get hot, the idle speed will sometimes race. The car will want to surge forward even when I'm not giving it ...
3
votes
1answer
104 views
2004 Buick Rainier Ignition Coil Replacement
I have a 2004 Buick Rainier (6 cyllinder). I just found out the 4th bank ignition coil is bad. Seems easy enough just looking at it (I just replaced a few of the spark plugs a few nights ago with no ...
3
votes
1answer
143 views
2001 Audi A4 corroded part… What is it?
I noticed under my hood that a piece looks corroded through. My car hasn't given any warnings or check engine lights and no liquid is coming through. No one I ask knows what it is. Please help!
...
3
votes
2answers
575 views
BMW 330D 2001 E46 Turbo Charger not working as expected after changing
I have a problem with my car.
My car:
BMW 330D, 135kw, 2001 year, E46.
A week ago my turbo charger got broken when I was driving. There was a lot of white smoke going out of exhaust and there was ...
10
votes
2answers
1k views
Why doesn't the engine stall out when you come to a stop with an automatic transmission?
When you come to a stop with a manual transmission you have to push the clutch in or take it out of gear to keep the engine from stalling out. What keeps the engine from stalling in an automatic ...
10
votes
2answers
683 views
Is starting your car with the A/C on bad?
I was always yelled at by my father when I was first starting to drive when I left the A/C on when I turned off the car, and then later turned it back on, with the reasoning that I was ruining / ...
2
votes
1answer
353 views
Engine does not have enough power (and has limited RPM)
I have a 1982 Mercedes W123 (engine M102 - gasoline, 2.0L, 80kW, with Stromberg 175CDT carburetor). The car has been modified to run on LPG, the modification consists of adding a LPG tank, vaporizer ...
3
votes
2answers
62 views
Top Dead Centre
I replaced a cylinder head gasket on my 1993 Holden Apollo (Same engine as the toyota camry 5S-FE). However when I went to get TDC I think I may have forgotten to put the car in Neutral. Could this ...
1
vote
0answers
77 views
How can I rev my engine in drive while holding the brake and not stall? [duplicate]
Possible Duplicate:
Why doesn't the engine stall out when you come to a stop with an automatic transmission?
Occasionally I press both pedals simultaneously. I can feel my car trying to ...
3
votes
2answers
180 views
Advice needed - My car has burn mark on hood and seems to be leaking oil
I have a 4 year old, well loved Honda civic with only about 25K. It has been serviced nearly every 6 months. I just took it for a service a few weeks ago and today I noticed that it seemed to be ...
6
votes
3answers
116 views
Will I be okay running thinner oil with a minor oil leak on an older car?
Recently when I had some work done I was shown a minor leak, I believe he told me it was the oil pan. It doesn't drip out onto the ground, but if you look closely you can see condensed oil drops on ...
1
vote
2answers
89 views
Are engines of the same model bike identical?
I am planning to buy a Yamaha Crux from the showroom. I'd like to know how to compare the engines in each of the available bikes of the same model. Will they differ in any way? One mechanic I know ...
3
votes
3answers
274 views
Is it feasible to Turbo a NA engine while maintaining 87 AKI octane fuel use?
I initially thought there should be a way to bolt on a small aftermarket turbo onto my naturally-aspirated Honda D17A2 (9.9:1 compression ratio) engine in my EM2 Civic EX without having to switch from ...
4
votes
1answer
887 views
How to clean the MAF sensor on a 1997 Nissan Altima?
I have a 1997 Nissan Altima sedan. I’ve been told the issues I’m having with my car is from the mass air flow sensor. I was wondering how to clean/repair this sensor and contact points the best? What ...
5
votes
2answers
1k views
Car temperature displaying below Cold or just above Cold always?
I've noticed on my 94 Integra (bought used about 2 weeks ago) that the thermostat is often below cold, sometimes above cold but never up to the center mark.
Today I was boiling inside my car as it ...
4
votes
2answers
806 views
Why does my engine perform poorly and get bad gas mileage after using fuel injector cleaner?
At the advice of someone at a local auto parts shop, I poured a bottle of fuel injector cleaner into my gas tank. This happened around the same time that I had a brake job done and rotated my tires.
...
4
votes
1answer
105 views
Put Stop leak into engine. Can I reverse the process?
I accidently poured Barsleaks stop leak for the radiator into the engine oil compartment. Is there any way I can reverse the process? The stuff is hardening already. This a 2004 Volvo S80.
1
vote
1answer
608 views
1998 Ford Contour P0171 P0174
I have a 1998 Ford Contour that has a check engine light. I checked the codes, and found:
P0171 System Too Lean (Bank 1)
P0174 System Too Lean (Bank 2)
P0401 Insufficient EGR Flow
P1131 Lack of ...
2
votes
2answers
616 views
Possible causes of this Honda Civic K20 engine whine/hiss?
I own a 2008 Euro Civic Type-R which has almost the same engine as the US Civic Si (K20Z3 vs K20Z4).
Since a bit of time I have a really annoying high pitched noise coming from the engine. It's ...
11
votes
3answers
1k views
Static vs. Effective compression: Why does higher effective compression not require higher octane gas?
Background
I've been trying to do a lot of research on boost lately because I'm planning on running a moderate turbo setup on my daily/light-duty-autox car in the future. I'm trying to get into the ...
2
votes
2answers
477 views
Why would welsh plugs start leaking?
I have a VW Citi Golf, and the Welsh plugs on the engine block suddenly started leaking water. The engine sounds fine, but it obviously leaked a lot of water and although I didn't drive far, I'm not ...
1
vote
1answer
95 views
Toyota Camry 2000: Odd Coughing when starts
Recently, I notice that my car begins coughing couple minutes after it starts. It have happened since Jan, 2012. First, I thought it might be due to Winter since it is cold weather.
However, it ...
2
votes
4answers
3k views
Is engine braking harmful? [duplicate]
Possible Duplicate:
Does Downshifting (Engine Braking) Cause Extra Wear and Tear?
My wife and I have a disagreement about a practice of mine--engine braking. When I'm driving her manual ...
1
vote
1answer
183 views
Cold engine works on three out of four cylinders
When my Honda CBR900’s engine is cold, it works only on three cylinders. When the engine begins to warm, all goes fine and all the cylinders begin to work. What can cause this?
4
votes
1answer
338 views
Polo TDI 2004 - intermittent power, smoke, turbo issue
Car: Polo TDI 2004 1.4 with 190,000 km (118,060 miles) on the clock. While
Issue: driving it intermittently (distance/time are not factors it seems) it starts to spew black/dark grey smoke and all ...
3
votes
2answers
896 views
BMW E30 M20 oil warning light goes on on hot days but the motor sounds and performs fine
The car: BMW '90 E30 320i Cabrio with the six-cylinder M20 engine.
The problem: the red engine oil warning light inside the instrument cluster (not the check control) lights up after some driving. ...
1
vote
4answers
194 views
Car engine starts only for a fraction of a second and doesn't anymore?
Recharged the car battery, dashboard lights all on, starter motor producing the starting sound. Engine not starting. After seeing this question, I cleaned the solenoid brushes and at the first turn of ...
5
votes
1answer
392 views
What do i need to know when replacing a valve cover gasket
I have an oil leak from a cracked valve cover gasket that i want to replace myself. I bought the gasket nearly 6 months ago and i am apprehensive at doing it myself without sort of feed back as to ...
3
votes
1answer
272 views
1994 Ford Escort won't start
I have a 1994 Ford Escort that was bought used 2 years ago. When we bought it, it would barely run, and we had to replace the engine head. As a result of that and other repairs, it has been losing ...
5
votes
4answers
3k views
Doing my own fuel induction service - how to, and how difficult?
Was recommended to get a fuel induction service for a 2002 V4 Camry, and am considering doing it MYSELF. The reasons for considering this are:
My car idles a bit rough, especially when the AC is on.
...
2
votes
1answer
231 views
Lifter tick—safe to ignore short-term? What to do about it?
I have a 2002 Toyota Camry V6 (1MZ-FE) with about 129,000 miles on it. Recently, I noticed a ticking that seems to be loudest at the end of the front valve cover, on the opposite side of the timing ...
1
vote
1answer
61 views
how a car engine can get accustomed on some behavior?
A lot of people say that a car engine gets accustomed to the driver style and in particular to specific RPM gear changing and it will perform into those "learned" parameters.
I must mention that I am ...
2
votes
1answer
136 views
2004 Buick LeSabre sputters in wet weather only when accelerating
My 2004 Buick LeSabre recently started behaving strangely. At first I thought I had filled up with some "bad gas." I used Heat to treat and after a week or so it seemingly started to work fine.
Then ...
4
votes
4answers
4k views
Is idling bad for your engine?
If I sit in my car for 30-40 minutes with the AC and the car idling, does that "hurt" the engine, or does it simply waste gas and pollute the air? Would it be better if I turned off the car? A ...
1
vote
1answer
106 views
Buick Timing Chain or Cam Problem
I have a 1995 Buick Century with a 3.1L v6 engine. I was driving along one day and the car simply quit. After having the car towed to the local shop, they explained it could be a timing chain or the ...
-1
votes
1answer
78 views
Car electronics [closed]
I am developing system and I have this converter: Picture
And I need to connect this to car electronic. Where is the best spot to connect this?
Can you post a picture to show me the wires.
